Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 8a28af7f authored by Michal Simek's avatar Michal Simek Committed by Greg Kroah-Hartman
Browse files

serial: Add CONSOLE_POLL support for uartlite



CONSOLE_POLL support for uartlite enables
KGDB debugging over serial line.

Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
Signed-off-by: default avatarJason Wessel <jason.wessel@windriver.com>
Acked-by: default avatarPeter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent a9589811
Loading
Loading
Loading
Loading
+25 −1
Original line number Original line Diff line number Diff line
@@ -322,6 +322,26 @@ static int ulite_verify_port(struct uart_port *port, struct serial_struct *ser)
	return -EINVAL;
	return -EINVAL;
}
}


#ifdef CONFIG_CONSOLE_POLL
static int ulite_get_poll_char(struct uart_port *port)
{
	if (!(ioread32be(port->membase + ULITE_STATUS)
						& ULITE_STATUS_RXVALID))
		return NO_POLL_CHAR;

	return ioread32be(port->membase + ULITE_RX);
}

static void ulite_put_poll_char(struct uart_port *port, unsigned char ch)
{
	while (ioread32be(port->membase + ULITE_STATUS) & ULITE_STATUS_TXFULL)
		cpu_relax();

	/* write char to device */
	iowrite32be(ch, port->membase + ULITE_TX);
}
#endif

static struct uart_ops ulite_ops = {
static struct uart_ops ulite_ops = {
	.tx_empty	= ulite_tx_empty,
	.tx_empty	= ulite_tx_empty,
	.set_mctrl	= ulite_set_mctrl,
	.set_mctrl	= ulite_set_mctrl,
@@ -338,7 +358,11 @@ static struct uart_ops ulite_ops = {
	.release_port	= ulite_release_port,
	.release_port	= ulite_release_port,
	.request_port	= ulite_request_port,
	.request_port	= ulite_request_port,
	.config_port	= ulite_config_port,
	.config_port	= ulite_config_port,
	.verify_port	= ulite_verify_port
	.verify_port	= ulite_verify_port,
#ifdef CONFIG_CONSOLE_POLL
	.poll_get_char	= ulite_get_poll_char,
	.poll_put_char	= ulite_put_poll_char,
#endif
};
};


/* ---------------------------------------------------------------------
/* ---------------------------------------------------------------------